Sewing-machine.



A. GRIEB.

SEWING MACHINE.

APPLIQAT-ION FILED FEB. 26, 1915.

Patented Nov. 28, 1916.

IIVVENTOR WITNESSES c n m w a m n A w u" u r u m o u P a c s a z 1 E P m n R o u 2 1 A. GRIEB.

SEWING MACHINE- APPLICATION FILED rmzs. 19x5.

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WU @A ALFRED GRIEB, 0F ELIZABETH, NEW JERSEY, ASSIGNOR TO THE SINGER MANUFAC- TURING COMPANY, A CORPORATION OF NEW JERSEY.

SEWING-MACHINE.

Application filed February 26, 1915.

To all whom it may concern Be it known that I, ALFRED Gums, a citizen of the United States, residing at Elizabeth, in the county of Union and State of New Jersey, have invented certain new and useful Improvements in Sewing-Machines, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to sewing machines adapted for sewing sweat bands into hats; and it has for its object to provide an efli cient, durable and compactly arranged con struction in which the hat-supporting elements and the feeding and presser-wheels are relatively-movable for the easy insertion and withdrawal of the hat, the primary hat-supporting member being a circular disk mounted for universal movement, and carried by a springpressed treadle-operated presser-arm which carries the presserwheel and certain cordand hat-guiding elements.

The improvements are employed in con junction with stitch-forming mechanism of a known construction, in which the horizontal-reciprocatory needle-bar cooperates with a reciprocatory and laterally movable looper operated by a' cam-wheel on the driving shaft, and the feeding mechanism comprises a horizontally-disposed wheel formed with a serrated peripheral face.

Rising from the bed-plate of the machine is an angular arm, its upper portion being bent downwardly and at its end formed with a bearing boss to receive a freely-movable presser wheel, the latter being fitted upon an upright stud or post which is threaded at its upper end to receive a fastening screw for a rectangular needle-block. The block is formed with a needle-way for the needle and with a loop-finger which cooperates with the looper. Mounted upon the presser-arm, and overhanging the presser wheel is an adjustable bracket which supports a rigid guide-finger for the hat fold and also a pivotally mounted cordguide, the said guides being disposed at opposite sides of the needle path. The pri mary hat-supporting member is a circular disk having a ball-and-socket connection with a spring-pressed arm which serves to hold the fold of the hat brim against the lower faces of the overlying fold-guide and Specification of Letters Patent.

Patented Nov. 28, with.

Serial No. 10,678.

cord-guide. The secondary hat-supporting member is a segmental plate pivotally supported upon the presser-arm, so that it may yield laterally to conform with various sizes plate of the machine and which is formed with a rearwardly extending springpressed treadle-operated arm so that the faces of the presserand feed-wheels, normally brought into yielding Contact, may be separated when the treadle is depressed. And the ball connection between the hatsupporting disk and the framearm permits the disk to be tilted away from the presserwheel when. the presser-arm is retracted, to afford free spaces between the presser-wheel, the supporting disk, and the feed-wheel.

In the drawings, Figure 1 is a perspective view, partly in section, of the improvements, the frame of the machine being shown in dotted lines. Fig. 2 is a perspective view, of certain parts of the improvements removed from the machine, a hat being shown supported in sewing position. Fig. 3 is a perspective view partly in sec tion, of the presserand feed-wheels, the needle-block, loop-finger, cord and fold guides, the needle and the looper, showing a stitch. in the process of formation. Fig. 4 is a perspective view from the under side of the cord-and-fold guides and their supporting bracket. Fi 5 is an elevation, partly in section, of the presserand feed-wheels and hat supporting disk.

The improvements are shown applied to a sewing machine formed with a base A, bed-plate B and upright standard C. EX- tending transversely through the standard G is the driving shaft 1 provided with the balance-wheels Z)-7) and the grooved belt-pulley 2. Mounted for horizontal reciprocation within suitable bearing members of the standard C is the needle-bar 3 provided with the needle-clamp 4 in which is secured the needle 5. Cooperating with the needle is a looper (3 secured within the sleeve 7 of a pivotally mounted arm which receives reciprocatory and lateral. movements from the looper actuating cam 9' and other connections with the driving shaft 1. Rising from the bed-plate of the machine is a vertical shaft 10 which supports upon its upper end the horizontally disposed feed-wheel 11 which receives intermittent feeding move ments from suitable driving devices not shown. The structural characteristics of the stitch-forming mechanism thus briefly described form no part of the present invention and further description thereof is unnecessary.

The presser-wheel 12 which cooperates with the feed-wheel 11, is mounted for rotation within a bearing boss 13 formed at the end of the depending portion 1 1 of the presser-arm 14 which rises from below the bed-plate of the machine. The presserwheel rotates upon the reduced portion of a stud 15 which. is clamped within the bearing boss 13 by means of a clamping screw 16. A needle-block 17 is secured upon the upper end of stud 15 by means of a screw 18, so that the lower face thereof will meet the upper face of the presser-wheel 12 and thus serve to hold the latter in position. The needle block is provided with a lug 17 having a wall disposed adjacent the path of reciprocation of the needle; and at the opposite side of the needle path the' block is provided with an adjustable loop-finger 19 which is the complement of lug 17 X in providing a guard for the needle, and which at its end is formed with an upturned laterally-extending portion 19 over the beveled face of which the loop is drawn by the looper duringthe retraction of the needle, so that the pull of the thread, as the looper moves transversely of the needle puncture to position the loop, is upon the finger rather than upon the sweat band, and the latter is not cut by the thread. The loop-finger is so positioned with respect to the looper that the loop passes oif the same before it is en tered by the needle.

, The boss 13 of the presser-arm is formed with a flat seat 20 disposed immediately below the presser-wheel 12 and adapted to receive the base portion 21 of a bracket 21, a screw 22 passing through an elongated aperture in the bracket serving to permit vertical adjustment of the latter. The angular upper portion of the bracket 21 is formed with a fiat horizontally-disposed seat which overhangs the presser-wheel and which is apertured to receive a screw 23 passing through an elongated aperture formed in a bracket extension 24- to which is fixed by means of the screws 25 a curved guide-finger 26 which projects slightly beyond the presser and the feed-wheels. The bracket extension 24 also affords a support for a cord-guide 27 which is pivoted thereto'by meansyof, a stud-screw 28 and which is formed with; an upwardly extending finger piece29 The cord-guide is provided with a nose which projects slightly'be'yond the periphery of the presser-wheel and which is apertured to receive and guide the cord 0, the cord passing also through an aperture formed in the finger piece 29 of the guide. It will be seen that the formation of the bracket 21 and its extension 24 will permit the guide-finger 26 and cord-guide 27 to be bodily adjusted either vertically or horizontally to conform with various thicknesses of material or changes desired in the depth of stitch position of the cord &c.

The primary hat-supporting member is a disk 31 having a beveled face 31 and formed with a central aperture into which is fitted a substantially spherical head or ball 32 at one end of a stud 82 clamped by a set-screw within an aperture formed in the end of an arm 3% loosely mounted upon a pin 35 clamped by means of a screw 36 within an aperture formed in the prcsserarm. The disk 31 is held on the ball by means of a cap piece 37 which has a central aperture shaped to lit the forward portion of the ball and which is secured to the disk by means of the screws 38. The disk-carrying arm 3%. is formed with a depending lug 39 in contact with a thumb-screw 10 within a suitable threaded aperture on the presserarm. By turning the thumb-screw a0 to the right the disk may be raised against the stress of a spring ll having one end secured to the arm 34 and the opposite end fitted within an aperture formed in the fixed pin 35, and by turning the thumb-screw in the reverse direction the disk may be lowered by the action of the spring 41.

The secondary hat-supporting member is a segmental guide-plate 42 secured at its lower end to a swinging-bar 413, the apertured end of the bar being clamped by means of screws 44, upon a pin &5 loosely fitted within the apertured lugs 46 of an angular arm 47 which is formed with a rib 47* which fits within a recess formed in the face of arm 14, a screw passing through an elongated aperture in the arm 17 serving to adjustably secure the same in position. Lateral movement of the guide-plate 42 is limited by means of a stop, the stop comprising a plate 49 secured to the angular arm 46 by means of screw 50 and bent upwardly at 49* to project above the lower edge of the disk.

As hereinbefore stated, the arm 14: comprises two sections. The lower section of the arm lies entirely beneath the bed-plate and projects rearwardly to a point below the standard 0 of the machine. The base of the upper section of the arm is, in this instance, circular in form and is reduced at its lower end, as indicated by the numeral 51, in Fig. 1, to fit within an aperture formed in the lower presser-arm section, the two sections being clamped together by a screw 52. The connected presser-arm sections are mounted to rock on trunnions or 1 iii) center screws, one of which is indicated by the numeral 53 in Fig. 1. The rearwardly extending portion 54'. of the lower presserarm section is normally pressed downwardly by means of a spring 55 fitted within the standard (,3, the spring serving to press the resser-wheel toward the serrated peripheral face of the feed-wheel. YVhen it is desired, however, to place a hat in sewing position or to remove a hat from the machine, the presser-arm is moved upwardly against the stress of the spring 55 and the hat-supporting disk 31 and plate 42, and the presser-wheel 12, are bodily moved away from the feed-wheel. To effect this result a lifting lever 56 is provided, the lever being pivoted to the machine frame by means of a stud-screw 57 and having its free end underlying and turned upwardly into contact with the end of the lower ln'esser-arn'i section. To the opposite end of arm 56 is connected the treadle-rod 58 of a suitable treadle device, by which the presser-arm and its other parts may be retracted by foot pressure to permit the operator to use both hands in inserting work or withdrawing the same from the machine.

It will be seen that the feed-wheel di rectly engages the brim of the hat near its fold and that the periphery of the disk 81 engages the fold below the path of reciprocation of the needle. Thus the hat is firmly held at the stitching point by the contact of the underlying supporting disk with one face of the material and the opposed toothed feed and presser-wheels with the other face of the material; and vertical adjustment of the supporting disk will determine the depth of stitch.

The form of the cord-guide and its supporting means enables the operator to swing the guide within the periphery of the feed.- wheel and thus out of engagement with the hat. Both of the guide-fingers may be adjusted with their supporting bracket both vertically and horizontally to provide for changes in the thickness of the hat material or depth of stitch desired.

It will be understood that various changes may be made in the form and arrangement of the parts without departing from the spirit of the invention. For example, the guide-plate 42 may be straight instead of semi-circular; and the presser-arm 14- may be formed as a unitary member, its sectional construction. being convenient in assembling the parts.

Having thus set forth the nature of the invention, what I claim herein is 1. In a hat sewing machine, the combination with a frame, a driving shaft, a reciprocating needle and cooperating stitchforming mechanism connected with said driving shaft, of a feed-wheel, a presserarm provided with a presser-wheel, and a vertically disposed supporting disk intermediate the operative faces of the presser and feed-wheels and rotatable about an extending transversely of the axis of the presser-wheel to engage a hat at its fold intermediate the brim and crown.

2. In a hat sewing machine, the combination with a reciprocating needle and cooperating stitch-forming members, of yieldingly opposed feed and presser members, a rotatable hat supporting disk having its periphery in a plane intermediate said feed and presser members, and a pivotal support for said disk disposed closely adjacent to said plane.

3. In a hat sewing machine, the combination with a reciprocating needle and cooperating stitch-forming members, of yieldingly opposed feed and presser members, a rotatable hat supporting disk having its periphery in a plane intermediate said feed and presser members, a support for said disk and a universal joint connection between said disk and said support.

4. In a hat sewing machine, the combination with a reciprocating needle and cooperating stitch-forming members, of yieldingly opposed feed and presser members, a rotatable hat supporting disk having its periphery in a plane intermediate said feed and presser members, a support for said disk and a ball and socket connection between said disk and said support.

5. In a hat sewing machine, the combination with a frame, a driving shaft, and stitch-forming mechanism operatively connected with said driving shaft, of opposed feeding and presser-wheels, a hat-supporting disk rotatable about an axis extending transversely of the axis of the presser-wheel, a spring-pressed supporting arm common to the disk and presser-wheel, and means whereby said arm may be retracted against the pressure of its spring.

6. In a hat sewing machine, the combination with a frame, a driving shaft, and stitch-forming and feeding members operatively connected with said driving shaft, of a presser-member, an arm pivotally mounted on the frame and. carrying said presser-member, a rotary hat supporting disk mounted upon the presser-arm for lateral movement toward and from the presser-member, and means for moving said arm to simultaneously carry the pressermember and disk toward or from the feeding member.

7. In a hat sewing machine, the combination with a frame, a driving shaft and stitch-forming and feeding members operatively connected therewith, of a pressermember, a presser-arm, a supporting disk and a guide-plate each mounted for lateral movement upon the presser-arm and adapted-to'engage a hat at its fold intermediate the brim and crown, and means whereby the presser-arm may be moved toward and from thefeeding member.

' said disk upon a substantially horizontal .atively connected therewith, of a pressermember, a spring-pressed arm adapted to sustain said presser-member, a hat-supporting disk disposed intermediate the presser and feeding members, a lever fulcrumed upon the presser-arm and having a universal joint connection with the disk, a spring acting upon said lever, and means whereby the lever may be moved upon its fulcrum in opposition to said spring.

10. In a hat sewing machine, the combination with a frame, a driving shaft and stitch-forming and feeding members operatively connected therewith, of a presserarm provided with a presser-wheel, a bracket adjustably mounted upon said arm and overhanging in the presser-wheel, a guide-finger carried by said bracket and adapted to engage a fold on the hat, and a retractable finger mounted upon said bracket and provided with an apertured projection adapted to receive a cord and to cooperate with said guide-finger.

11. In a hat sewing machine, the combination with stitching mechanism, a feedin wheel and a presser-wheel having opposed toothed faces, of a supporting arm for said presser-wheel, a bracket adjustably carried .by said arm, and oppositely disposed guidefingers adjustably mounted upon said bracket, one of the said fingers being apertured to receive a cord and adapted to be independently moved toward and from operating position.

12. In a hat sewing machine, the combination with a horizontally reciprocating needle, a looper adapted to cooperate with said needle, a feed-wheel, a presser-wheel and a presser-arm therefor, of a block on the presser-arm formed with a guideway having parallel walls adjacent the path of the needle, and a thread-engaging finger overhanging the needleway and over which the loop is drawn by the looper prior to the penetration of the loop by the needle.

18. In a hat sewing machine, the combination with a frame, a horizontally disposed feed-wheel, a presser-arm provided with a horizontally disposed presser-wheel. said presser-arm being pivotally supported. upon the frame, a spring acting upon the presser-arm to cause the presser-wheel to engage the face of the feed-wheel, a vortically disposed hat-supporting disk carried by the presser-arm, and a treadle operated lever adapted to retract said presser-arm against the action of its spring.

14. In a hat sewing machine, the combination with a frame, a horizontally reciprocating needle and a cooperating looper, of a horizontally disposed feeding wheel, and a horizontally disposed presser-wheel, a presser-arm comprising an upper section and a rocking underlying section to which the upper section is adjustably connected, a spring acting upon the lower presser-arm section to cause the presser-wheel to engage the face of the feed-wheel, and a treadle operated lever mounted in the frame and adapted to act upon the presser-arm in opposition to its spring.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ALFRED GRIEB. Witnesses W. LEE HnLMs, HENRY A. KORNEMANN, J r.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

- Washington, D. O.

errections in Letters Patent No. 1,206,433.

It is hereby certified that in Letters Patent No. 1,206,433, granted November 28,

1916, upon the application of Alfred Gricb, of Elizabeth, New Jersey, for an improvement in Sewing-Machines,

errors appear in the printed specification requiring correction as follows: Page 3, line 66, claim 1, strike out the Words vertically disposed; page 4, line 34,olaim 10, strike out the Word in; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 2d day of January, A. D., 1917.

R. F. WHITEHEAD,

Acting Commissioner of Patents.

[sEAL.] 

